How are people handling conflicting visit days/open houses?
For the one you miss, are going to try to visit individually at a different time, or speak to professors/grad students over email/phone?
Not sure you're asking the right people here mate.
Although, while we're on the topic of Columbia, has anyone heard from Columbia? Lots of posts popping up now and then on the results page but I don't recall seeing anybody claiming them here.
That's strange. But, hey, an acceptance is acceptance regardless of the mode of delivery! Congratulations!!
Also, if you don't mind my asking, are you a domestic or international applicant?